[Scan-DC] Pentagon Force Protection Agency (PFPA) Freqs?

[dehm]

I've been searching everywhere for the freqs used by the "Pentagon
Police" labeled cars but can't find any info. It looks like the have
UHF antennas and I'm assuming it's trunked. The agency is Pentagon
Force Protection Agency (PFPA) which as I found out was formerly known
as The Defense Protective Service. Now I believe it is part of the
DoD. Their website is http://www.pfpa.mil/

I looked through the DoD DC/VA trunked system but didn't find any
reference to PFPA and google searches resulted with no information.

Anyone?

Jay